Home / 808,309.92-1,115,531.28-445,766.88

Finding the Fourth Proportional to 808,309.92, 1,115,531.28 and 445,766.88

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Solution

The fourth proportional to 808,309.92, 1,115,531.28 and 445,766.88 is: 615,193.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,309.92 : 1,115,531.28 = 445,766.88 : x
  2. Step 2: Convert to fraction form
    808,309.92/1,115,531.28 = 445,766.88/x
  3. Step 3: Cross multiply
    808,309.92x = 1,115,531.28 × 445,766.88
  4. Step 4: Simplify right side
    808,309.92x = 497,266,898,228.01
  5. Step 5: Solve for x
    x = 497,266,898,228.01/808,309.92
  6. Step 6: Final answer
    x = 615,193.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.